内燃发电机组冷热电联供系统集成式热管理器的设计

Design of Integrated Thermal Management Controller for CCHP System Based on Internal Combustion Engine Generator Set

内燃发电机组冷热电联供系统作为一种分布式能源供应系统，具有能源利用率高，经济性好等优点。在实际运行过程中，需要同时解决缸套水温度控制、余热回收与管理等多个问题。为解决这些问题，该文提出集成式热管理器的概念。该热管理器既可以控制缸套水温度，又可以实现多品位热源输入、多种类热用户热量输出和余热热能管理等多种功能。文中介绍了其运行原理和热管理思路，并基于微型冷热电联供实验系统，给出了热管理器工程样机的具体设计实例。模拟结果表明，微型冷热电联供系统发电功率从空载到满负荷12kW发电的过程中，在不同余热利用工况下，内燃发电机组缸套水进口温度都可以控制在84～89℃，同时具备良好的余热热能管理功能。

The internal combustion engine based on combined cooling, heating and power（CCHP） system is an attracting distributed energy system（DES） for its economic and environmental friendly qualities. There are some problems to be solved in its practical application, such as jacket water temperature control, the recovery and management of waste heat, optimal operation, and so on. To obtain these goals, the concept of integrated thermal management controller（1TMC） was presented. The operation principle and thermal management method of the ITMC were discussed. The design process of a prototype based on a micro-scale CCHP system was given. Simulation results show that the jacket water temperature can be controlled within the range from 84 to 89℃ with the electricity output variation from 0 to 12kW and the thermal utilization ratio is from 0 to 100%.